<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <link rel="stylesheet" type="text/css" href="./index.css">
    </head>
    <body>
    	<div class="cude">
    		<div class="surface front">
    			正面
    		</div>
    		<div class="surface left">
    			左面
    		</div>
    		<div class="surface right">
    			右面
    		</div>
    		<div class="surface bottow">
    			底面
    		</div>
    		<div class="surface top">
    			顶面
    		</div>
    		<div class="surface back">
    			背面
    		</div>
    	</div>
    </body>
</html>